Every named river in the Adirondack Park — the Hudson, the Moose, the Raquette, the Sacandaga, and the rivers that drain the High Peaks.
The Osgood River drains north through the Saranac Lake watershed, a working tributary in the St. Regis drainage — the kind of river that moves through the region without fanfare, threading between back roads and private land. It's not a destination water, but it's part of the connective tissue that makes the northern Adirondacks what it is: a lattice of flow, not just a collection of named ponds. Access is limited and informal; this is a river you cross more often than you paddle or fish. If you're mapping the drainage or chasing brookies through the lesser tributaries of the St. Regis system, you'll eventually intersect the Osgood — but you won't find a trailhead sign.
The Osgood River drains north out of Osgood Pond — a small, marshy system in the working forest between Paul Smiths and the village of Saranac Lake — and feeds into the Saranac River proper just upstream of the Saranac Inn Golf Course. It's a low-gradient stream with a soft bed and tea-colored water, the kind of secondary flow that sees more moose than anglers, more canoe portage maps than trip reports. The state owns scattered parcels along its length, but most of the corridor is private timberland with limited formal access. If you're putting in at Osgood Pond, the river is navigable downstream in high water — but expect blowdown, beaver work, and a takeout question you'll need to solve with a map and a phone call.